Candesartan in the Prevention of Relapsing Atrial Fibrillation - Full Text View

Sponsors and Collaborators:	Asker & Baerum Hospital Helse Ost Ullevaal University Hospital AstraZeneca
Information provided by:	Asker & Baerum Hospital
ClinicalTrials.gov Identifier:	NCT00130975

Purpose

The purpose of this study is to test the hypothesis that treatment with the angiotensin II type 1 receptor antagonist candesartan may reduce the recurrence rate of atrial fibrillation after electrical cardioversion.

Condition	Intervention	Phase
Atrial Fibrillation	Drug: Candesartan	Phase III

Genetics Home Reference related topics: Brugada syndrome familial atrial fibrillation short QT syndrome

Drug Information available for: Candesartan cilexetil CV 11974

U.S. FDA Resources

Study Type:	Interventional
Study Design:	Treatment, Randomized, Double-Blind, Placebo Control, Parallel Assignment, Efficacy Study

Further study details as provided by Asker & Baerum Hospital:

Primary Outcome Measures:

Recurrence of atrial fibrillation

Secondary Outcome Measures:

Time to recurrence of atrial fibrillation

Estimated Enrollment:	200
Study Start Date:	April 2001
Estimated Study Completion Date:	September 2005

Detailed Description:

Background: The most effective procedure to restore sinus rhythm in patients with persistent atrial fibrillation (AF) is electrical cardioversion, but AF recurs in 60-80% of the patients during the first year. AF is associated with electrical and anatomical remodelling of the atria, and angiotensin II is involved in the remodelling process. Studies have indicated that the angiotensin II type 1 receptor antagonist candesartan may counteract both electrical and anatomical remodelling induced by AF. The investigators therefore hypothesised that treatment with candesartan may reduce the recurrence rate of AF after electrical cardioversion.

Study design: 171 patients with persistent AF scheduled for electrical cardioversion are randomised in a double blind, placebo-controlled study. The patients receive tablets of candesartan 8 mg or matching placebo once daily for 3-6 weeks before cardioversion, and candesartan 16 mg or matching placebo once daily for 6 months after cardioversion. The study medication is discontinued if electrical cardioversion is unsuccessful or if AF recurrence is documented. Primary endpoint is recurrence of AF. Clinical, electrocardiographic, echocardiographic and biochemical markers will be analysed.

Eligibility

Ages Eligible for Study:	18 Years and older
Genders Eligible for Study:	Both
Accepts Healthy Volunteers:	No

Criteria

Inclusion Criteria:

Patients with atrial fibrillation, diagnosed electrocardiographically, of more than 48 hours duration in whom direct current (DC) cardioversion is planned.

Exclusion Criteria:

Patients with a history of known hypersensitivity or contraindication to any angiotensin II receptor blocker or any angiotensin-converting enzyme (ACE) inhibitor.
Patients currently receiving an ACE inhibitor or angiotensin II antagonist because of heart failure or other strong indication.
Patients currently receiving any antiarrhythmic medication including sotalol. Other beta-blockers will not be regarded as specific antiarrhythmic agents.
Significant renal artery stenosis and any medical condition in which administration of a vasodilator is contraindicated; serum creatinine > 225 micromol/L; or serum potassium > 5.5 mmol/L; or serum sodium < 128 mmol/L.
Patients with severe hepatic dysfunction.
Life-limiting disease or substance abuse which may affect participation.
Patients unwilling to participate.
Patients who have previously undergone DC cardioversion for atrial fibrillation within the last month.
Thyrotoxicosis.
Patients with a systolic blood pressure of < 100 mm Hg.
Hypertensive patients requiring intensified treatment prior to DC cardioversion.
Pregnancy or lactation.

Contacts and Locations

Please refer to this study by its ClinicalTrials.gov identifier: NCT00130975

Locations

Norway
Asker & Baerum Hospital
Rud, Norway, 1309
Ulleval University Hospital
Oslo, Norway, 0407

Sponsors and Collaborators

Asker & Baerum Hospital

Helse Ost

Ullevaal University Hospital

AstraZeneca

Investigators

Principal Investigator:

Arnljot Tveit, MD

Asker & Baerum Hospital

More Information

Publications of Results:

Tveit A, Grundvold I, Olufsen M, Seljeflot I, Abdelnoor M, Arnesen H, Smith P. Candesartan in the prevention of relapsing atrial fibrillation. Int J Cardiol. 2006 Nov 16; [Epub ahead of print]

Study ID Numbers:	CAPRAF
Study First Received:	August 16, 2005
Last Updated:	January 3, 2007
ClinicalTrials.gov Identifier:	NCT00130975
Health Authority:	Norway: Norwegian Medicines Agency

Keywords provided by Asker & Baerum Hospital:

Atrial fibrillation.
Cardioversion.
Recurrence.
Candesartan.

Study placed in the following topic categories:

Candesartan cilexetil
Heart Diseases
Candesartan
Atrial Fibrillation

Angiotensin II
Recurrence
Arrhythmias, Cardiac

Additional relevant MeSH terms:

Angiotensin II Type 1 Receptor Blockers
Pathologic Processes
Molecular Mechanisms of Pharmacological Action
Therapeutic Uses

Cardiovascular Diseases
Cardiovascular Agents
Antihypertensive Agents
Pharmacologic Actions

ClinicalTrials.gov processed this record on January 16, 2009